Omniscient plus Guardian - better with Klackons or Lizards?

[occasionalplayer]

I thought about this: Omniscient/Guardian (and: Myrran, it seems). The concept is simple: Expand as much as you can. 
It has been suggested with Klackons (one book each - two life books). However, the problem with Klackons: 

1. Settlers are extremely slow
2. Lair conquest virtually impossible (no ranged units, flyers cannot be hurt until Stag Beetle).
3. Neutrals must be razed usually.

Lizards: 
1. Low production for lack of miners guild.
2. Worse buildings than Klackons
3. Less gold. 

Would appreciate input. Probably not enough for lunatic, but might work well eg on expert.

[Seravy]

Smaller land size I'd pick lizards, medium and larger land size I'd pick Klackons.
Klackons grow faster - higher max population isn't going to do anything for you if you can't reach it so that's important.
Overall this feels a bit of a self-contradicting strategy : low books mean you have to win early because you have no strong spells, but max population doesn't come into play until much later. I'd probably use 5+1+1+1+1 books+Guardian+Omniscient to have mid/late game spells instead. Maybe 4 books and Charismatic - if aiming for early peaceful over-expansion, not getting attacked is important. Life, Chaos or Sorcery should work for the realm with 4 books, Death and Nature probably bad for this strategy. Sorcery seems especially good : You get Aura of Majesty and Blur.